DIY: Replace the thermostat on a F-150 - Truck Forums

Go Back   Truck Forums > Manufacturer Tech and How-To's > Ford General Tech > Ford How-To's and Tutorials
Sign in using an external account
Register Forgot Password?

LinkBack Thread Tools Search this Thread
Old 04-15-2010, 04:18 AM
Worf's Avatar
Ford and Dodge Truck Forum Moderator
Join Date: Mar 2010
Location: United States
Posts: 862
Send a message via MSN to Worf Send a message via Yahoo to Worf
Default DIY: Replace the thermostat on a F-150

1. Remove the bolts that hold the thermostat intake cover onto the intake manifold of the F-150 with an adjustable wrench. Place the bolts off to the side. They will be reused during the installation process. Pull the radiator hose the thermostat cover is connected to into the air and let the antifreeze flow back into the radiator.

2. Pull the thermostat out of the exposed hole in the intake manifold with your fingers. The thermostat is not bolted into place. It sits on a machined flange inside of the intake manifold.

3. Pull the old carbon thermostat gasket off of the intake manifold and discard it. Place a bead of RTV silicone on each side of the new thermostat and place it onto the intake manifold. Make sure to line the holes cut out of the gasket for the bolts up with the actual bolt holes on the intake manifold.

4. Place the new thermostat back into the intake manifold with the correct end facing out of the engine. The end will be marked as the top of the thermostat.

5. Place the thermostat cover back onto the intake manifold and bolt it into place. Start the engine and check for leaks. If you see any leaks tighten the cover down to remove them.
This ad is not displayed to registered members.
Register your free account today and become a member on Truckforums!
1999 Ford F150 Ext Cab 5.4L 4x4

"Winner best truck 90's Modified"
2011 Sierra Vista Cars in the Park
"Winner best truck 90's Modified"
2010 Sierra Vista Cars in the Park

-PM me if you need anything-
Reply With Quote
Old 04-15-2010, 04:18 AM

150, change, diy, f150, ford, gasket, install, photos, properly, radiator, replace, replacing, show, thermostat, truck

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Featured Sponsors
Vendor Directory

Our Sponsors
All times are GMT -5. The time now is 06:40 AM.

Internet Brands, Inc.